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Alternators

Alternators
The speed of a salient pole machine is nearly

1000 rpm
1500 rpm
500 rpm
3000 rpm

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Alternators
Voltage drop in an alternator when under load is due to ______

Armature reactance
Armature resistance
All of the listed here
Armatute reaction

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Alternators
Excessive windage loss and noise occur with

Either cylindrical or salient
Salient pole rotors
Cylindrical rotors
None of the listed here

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Alternators
For the same power rating, an alternator is ______that of a dc generator.

None of the listed here
Larger in size than
Smaller in size than
Of the same size as

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Alternators
The non salient field construction is used for _______ alternator.

High speed
Low speed
None of the listed here
Medium speed

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Alternators
The voltage regulation of an alternator depends on

None of the listed here
Load current only
Power factor only
Both load current and pf

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